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CHETANA PUBLICATION-Electromagnetic Induction-EXERCISE
- A magnetic field of 2 xx 10^-2Wb//m^2actsat the right angles to a coil...
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- A rectangular coil of 25 turns, area of 25 cm^2 and resistance of 4 oh...
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- The magnetic flux in a coil is phi = 4t^2 + 4t + 4. What is the magnit...
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- A rod of length l is rotated about its one end, perpendicular to a mag...
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- A conducting circular loop is placed in a uniform magnetic field B = 0...
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- A 100 mH coil carries 1 A current .Energy stored in its magnetic field...
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- The current in a coil changes from 0 to 20 A in 0.5S. If the induced e...
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- Which one of the following is the unit of self inductance of a coil?
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- If L is the inductance and R is the resistance, then the unit of -L/R ...
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- The self inductance L of a solenoid of length l and area of cross-sect...
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- Which one of the following units denotes the dimensions ML^2//Q^2, whe...
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- What is the dimensional formula for the coefficient of self induction?
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- A coil is wound on a frame of rectangular crosssection. If all the lin...
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- A metal plate is getting heated. It can be because Which is the wrong ...
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- In a step up transformer, the input voltage is 300 V and the output vo...
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- A step down transformer works on 220 volts a.c. mains. It is used to l...
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- A transformer has 250 volts applied to the primary and gives 4.6V in t...
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- The number of turns in the primary and secondary coils of a transforme...
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- In relation to a transformer, the relation np/ns= 20, indicate that
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- In an ideal transformer, the number of turns in the primary is 120 and...
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